I just finished having a pair of Fabspeed headers installed, along with the Fabspeed carbon air boxes and BMC Filters. I retained the stock secondary cat's, as I drive the car a bunch, and did not want it to be too loud. The UCU's were also sent to EVOMS for a specific file for this motor with headers. I alreday had the new Tubi Evo style exhaust in the car for while (with valves).... All I can say is WOW, the car really woke up, 2nd gear rolling , and nailing the throttle, it will light the wheels up, feels quicker then the Scud coup I owned, for sure. It pulls VERY strong up top too, reminds me of the 430 GT car I drove at Daytona in the 24 Hour this year where the thing just never ran out of rev's and speed on the top end....really impressive for sure. I am trying ot find a 16m to do some rolling start races with just to compare, I am very curious to see wher it stack's up (not literatlly), lol. Thanks Jeremy at Fabspeed for the amazing craftsmanship of the headers and air boxes, and thanks Todd at EVOMS, as the thing just riiiippps through gears.